That's a pretty poorly designed bracket from a strength and loading stand point. The amount of material on the upper side vs the diameter of the fitting is way too small. I'm willing to bet other people will find this broken too.
When load is applied to the rod it will twist the fastener in the hole. Since this is a suspension part it obviously sees many many loadings and unloadings everyday (every time you drive it actually). You can clearly see how repeated loading made the hole oblong shaped until the fitting pulled out.
When I changed out my sway bars my first thought was this style of rod should have a forked end instead of the single-sided end.... Now you can see why.